Cooler for a motorcycle sissy bar



FIG. 1 is a top plan view of a cooler for a motorcycle sissy bar showingmy new design;

FIG. 2 is a rear elevational view;

FIG. 3 is a bottom plan view;

FIG. 4 is a front elevational view; and

FIG. 5 is a left side elevational view.

The ornamental design for a cooler for a motorcycle sissy bar,substantially as shown and described.